Fischer; Loewenberg, Justus Liebigs Annalen der Chemie, 1932, vol. 494, p. 283
作者:Fischer、Loewenberg
DOI:——
日期:——
Unsaturated ketones and their use in perfumery
申请人:Firmenich SA
公开号:US06177400B1
公开(公告)日:2001-01-23
The compounds according to the general formula
in which formula the dotted lines indicate a single or a double bond, n and m are 0 or 1, R1 is hydrogen or an acyl group —C(O)R3, R3 being a linear or branched alkyl or alkylene group from C1 to C8, the oxygen atom being bound to the adjacent &agr;-carbon atom by a double bond in the case where n is 0 and by a single bond in the case where n is 1, R2 is hydrogen or a linear or branched alkyl, alkenyl or alkoxy group from C1 to C8, or R2 is an alkenoxy group which is linked to the group R1 to form a 1,3-dioxolane cycle having 5 to 7 ring members, are useful perfuming ingredients. The most preferred compounds according to the invention are those which have a damascone- or damascenone-like structure, with the methyl substituent being in 4-position of the ring instead of the 2-position, as is the case in damascones and damascenones.